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The incorrect statement among the follow...

The incorrect statement among the following is :

A

The first ionization potential of al is less than the first ionization potential of Mg

B

The second ionization potetial of Mg is greater than the second ionization potential of Na

C

The first ionization potential of Na is less than the first ionization potential of Mg

D

The third ionization potential of Mg is greater than the third ionization potential of Al.

Text Solution

Verified by Experts

The correct Answer is:
B
`IE_(2)` of Mg is lower than that of Na because in case of `Mg^(2+)` 3s-electron has to be removed while in case of `Na^(+)` , an electron from the stable inert gas configuration (Neon) has to be removed.
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